.footer {
  background-color: #333333;
  height: 331px;
  width: 100%;
}
/* 列表模块 */
.footer-list {
  height: 206px;
}
.footer-list dl{
  float: left;
  margin-top: 38px;
  margin-right: 20%;
  font-size: 13px;
}
.footer-list dl:last-child {
  margin-right: 0;
}

.footer-list dl dd {
  margin-top: 10px;
}
.footer-list dl dd a {
  color: white;
}
/* 精灵图模块 */
.footer-images {
  height: 66px;
}

.footer-images span {
  display: block;
  width: 32px;
  height: 32px;
  float: left;
  margin-right: 10px;
  margin-top: 20px;
}
.footer-images span:nth-child(1) {
  background: url(../img/2018-10-12_102743.png) no-repeat 0 0;
  margin-left: 542px;
}
.footer-images span:nth-child(1):hover{
  background-image: url(../img/weixin2.png);
  background-size: cover;
}
.footer-images span:nth-child(2) {
  background: url(../img/2018-10-12_102743.png) no-repeat -40px 0px;
}
.footer-images span:nth-child(2):hover {
  background: url(../img/xinlang2.png) no-repeat center;
  background-size: cover;
}
.footer-images span:nth-child(3) {
  background: url(../img/2018-10-12_102743.png) no-repeat -80px 0px;
  margin-right: 0;
}
.footer-images span:nth-child(3):hover {
  background: url(../img/yk2.png) no-repeat center;
  background-size: cover;
}
/* 文字 */
.footer-word {
  height: 24px;
  line-height: 24px;
  text-align: center;
  font-size: 13px;
}

.footer-word a {
  color: white;
  margin-right: 30px;
}

.footer-word a:last-child {
  margin-right: 0;
}
/* 返回顶部 */
/* .footer-last {
 display: none;
} */

.footer-last img {
  width: 40px; 
  height: 40px;
  background-color: white;
  border-radius: 50%;
  float: right;
  position: fixed;
  right: 10px;
 bottom: 10px;
}